The United States demanded last year that Japan pay $8 billion annually as expenses to host American troops, more than four times the current amount Tokyo shoulders, former White House National Security Adviser John Bolton says in his new book.During his trip to Japan in July 2019, Bolton conveyed U.S. President Donald Trump's request to a senior Japanese government official, according to the book to be published Tuesday. Kyodo News obtained a copy before it hits bookshelves.The book also revealed that Trump urged Bolton to use the threat of pulling U.S. troops out of Japan as leverage in n…READ FULL ARTICLE